diff --git a/main.py b/main.py
index c720397..49477c1 100644
--- a/main.py
+++ b/main.py
@@ -245,9 +245,9 @@ async def upload_file(file: UploadFile = File(...), page: Optional[str] = Form("
         print('ext', ext)
 
         if ext == ".csv":
-            df = read_csv(str(tmp_path), sheet)
-        elif ext == ".xlsx":
             df = read_csv(str(tmp_path))
+        elif ext == ".xlsx":
+            df = read_csv(str(tmp_path), sheet)
         elif ext == ".pdf":
             tbl = read_pdf(tmp_path, page)
             if len(tbl) == 0: